<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable>
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addGoods">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- ===================================商品列表区域=============================== -->
      <!-- 表格区域 -->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column width="95px" label="商品价格(￥)" prop="goods_price"></el-table-column>
        <el-table-column width="50px" label="重量" prop="goods_weight"></el-table-column>
        <el-table-column width="160px" label="创建时间">
          <template slot-scope="scope">{{ scope.row.add_time | dateFormat }}</template>
        </el-table-column>
        <el-table-column width="130px" label="操作">
          <template slot-scope="scope">
            <el-button icon="el-icon-edit" size="mini" type="primary"></el-button>
            <el-button
              icon="el-icon-delete"
              size="mini"
              type="danger"
              @click="removeGoods(scope.row)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[10, 20, 50, 100]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: "",
        // 当前的页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 10
      },
      total: 0,
      goodsList: []
    };
  },
  created() {
    this.getGoodsList();
  },
  methods: {
    async getGoodsList() {
      var { data: res } = await this.$http.get("goods", {
        params: this.queryInfo
      });
      this.goodsList = res.data.goods
      this.total = res.data.total;
    },
        // 监听 pagesize 改变的事件
    handleSizeChange(newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize;
      this.getGoodsList();
    },
    // 监听 页码值 改变的事件
    handleCurrentChange(newPage) {
      console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getGoodsList();
    },
    // 删除商品
    async removeGoods(goodsInfo){
        console.log(goodsInfo);
        // 弹出确定删除的对话框
        const confirmResult = await this.$confirm(
        '此操作将永久删除该商品, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
        console.log(confirmResult);
        // 确定 confirm 取消 cancel
      if(confirmResult == "confirm"){
        const { data:res } = await this.$http.delete(`goods/${ goodsInfo.goods_id }`)
        if(res.meta.status == 200){
            this.$message.success('删除成功')
            this.getGoodsList()
        }else{
            this.$message.error('删除失败')
        }
      }
    },
    // 添加商品
    addGoods(){
        // 编程式导航
        // router route
        this.$router.push('/goods/add')
    }
  }
};
</script>

<style lang="less" scoped>
</style>